2,441 results
2,441 results for: mutations
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Genetic search for an equine Eve fails
Genetic analysis suggests an unusual history for modern horses: lots of independent domestications instead of the usual few.
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A More Perfect Union
Forsaking life in the outside world, endosymbiotic bacteria of some insects traded freedom and nutrients for life inside a cell.
- Health & Medicine
Genetically altered cells ease hemophilia
A gene therapy using skin cells that are genetically modified to make clotting proteins, multiplied in a lab, and reinjected into a person eases some bleeding in patients with severe hemophilia.
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Dolly Was Lucky
Scientists studying the data on animal cloning argue that cloning a person would be unsafe.
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Telltale Heart
Genetics is revealing the first steps in building a heart—the organ that is first to develop, subject to the most birth defects, and difficult to heal when damaged later in life.
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RNA world gets support as prelife scenario
Scientists tinkering with a chemical now vital to life think they've recreated one of the central molecules that gave rise to the chemistry of life.
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Huntington’s protein may be kidnapper
An abnormal protein associated with Huntington's disease kills cells by stealing another protein needed for cell survival.
- Health & Medicine
Gene stifled in some lung, breast cancers
The silencing of a gene called RASSF1A appears to increase the risk of cancer, studies of lung and breast tumors show.
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- Health & Medicine
The Science of Secretin
The discovery that a gut hormone also exists in the brain may shed light on the origins of autism.
- Health & Medicine
Fatty Findings
A recently discovered protein may explain at least part of the molecular mechanisms behind links among obesity, diabetes, heart disease, and even some cancers.
- Health & Medicine
Ancient Estrogen
A jawless fish ancestor may have revealed the most ancient of hormones and how current hormones evolved from it.
